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Monthly climate in Dunham, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Dunham features a humid continental climate (Dfb). Temperatures typically range between -8 °C (18 °F) and 21 °C (70 °F) through the year, but rarely can drop to -32 °C (-25 °F) or can rise to as high as 35 °C (96 °F). The average annual precipitation amounts to about 1290 mm (50.8 inches) and receives 164 rainy days on the 1 mm (0.04 inches) threshold annually. Dunham enjoys an average of 2750 hours of sunshine throughout the year, and daylight varies from 8 hours 47 minutes to 15 hours 34 minutes per day.

Monthly average temperatures in Dunham, Canada

The warmest months in Dunham are June, July and August, with daily mean temperatures ranging from 18 to 21 °C (65 - 70 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -5 °C (18 - 24 °F) throughout the day. On average each year, Dunham experiences 46 days above 25 °C (77.0 °F) and 137 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Dunham. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum13°C
(56°F)		16°C
(61°F)		21°C
(70°F)		24°C
(76°F)		35°C
(96°F)		32°C
(91°F)		34°C
(93°F)		32°C
(89°F)		30°C
(87°F)		26°C
(79°F)		22°C
(73°F)		16°C
(60°F)
Mean maximum7°C
(45°F)		9°C
(48°F)		14°C
(57°F)		21°C
(71°F)		30°C
(86°F)		30°C
(86°F)		31°C
(88°F)		31°C
(87°F)		28°C
(82°F)		23°C
(74°F)		16°C
(62°F)		11°C
(52°F)
Average high-4°C
(25°F)		-2°C
(29°F)		2°C
(37°F)		10°C
(51°F)		18°C
(65°F)		23°C
(74°F)		26°C
(79°F)		25°C
(77°F)		21°C
(70°F)		14°C
(57°F)		5°C
(40°F)		-1°C
(30°F)
Daily mean-8°C
(18°F)		-6°C
(21°F)		-2°C
(29°F)		6°C
(43°F)		13°C
(56°F)		18°C
(65°F)		21°C
(70°F)		20°C
(68°F)		16°C
(60°F)		10°C
(49°F)		1°C
(34°F)		-5°C
(24°F)
Average low-12°C
(10°F)		-11°C
(12°F)		-6°C
(22°F)		1°C
(35°F)		8°C
(46°F)		13°C
(55°F)		16°C
(61°F)		15°C
(60°F)		11°C
(52°F)		6°C
(42°F)		-3°C
(27°F)		-9°C
(17°F)
Mean minimum-26°C
(-14°F)		-23°C
(-10°F)		-19°C
(-2°F)		-7°C
(20°F)		-0°C
(32°F)		6°C
(44°F)		10°C
(50°F)		8°C
(47°F)		2°C
(36°F)		-3°C
(27°F)		-16°C
(4°F)		-23°C
(-9°F)
Minimum-32°C
(-25°F)		-27°C
(-15°F)		-23°C
(-9°F)		-10°C
(14°F)		-2°C
(29°F)		1°C
(34°F)		8°C
(47°F)		6°C
(43°F)		-3°C
(27°F)		-7°C
(20°F)		-20°C
(-3°F)		-27°C
(-16°F)

Compare climate in Dunham with other places

Compare temperature, precipitation, sunshine, UV index in Dunham, Canada with other places around the world.

Monthly average precipitation in Dunham, Canada

Dunham usually has the most precipitation in April, October and November, with an average of 15 rainy days and 132 mm (5.2 inches) of precipitation per month. The driest months in Dunham are February, September and December. On average, 84 mm (3.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Dunham. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)94 (3.7)88 (3.5)91 (3.6)119 (4.7)106 (4.2)117 (4.6)118 (4.7)117 (4.6)77 (3.0)148 (5.8)128 (5.0)87 (3.4)
Average precipitation days (≥ 1 mm)121513151312141411151614

Monthly sunshine hours in Dunham, Canada

The sunniest months in Dunham are June, July and August, when the sun shines an average of 10 hours 48 minutes a day. Least sunny months in Dunham: January, November and December receive an average of 4 hours 18 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Dunham. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours113152227216282324335334287191142141
Mean daily daylight hours9h 11m10h 24m11h 57m13h 32m14h 53m15h 34m15h 11m13h 59m12h 28m10h 53m9h 30m8h 47m

Solar UV radiation in Dunham, Canada

Dunham experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 8 - 9, which corresponds to the Very High category of sun exposure. January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Dunham UV Index data.

Average daily maximum UV levels by month for Dunham. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)245799887532